What Is a Conversion Graph A conversion graph

What Is a Conversion Graph? A conversion graph shows the relationship between two different ways of measuring the same thing. The relationship is shown by a line on the graph that can then be used to read off the matching amounts. The same volume of milk could be measured as 1 pint or 568 ml. How many ways can you think of measuring Distance/Length and Weight? Distance/Length: mm, cm, m, miles, km, yards, feet, lengths, spans, cubits, hands, furlongs, light years. Weight: mg, g, kg, stones, pounds, ounces, tonnes Think About It Answers

Why Do We Need Conversion Graphs? Conversion graphs are a quick and easy way to change from one unit of measure to another without having to do any calculations. All you have to do is read from the line on the graph. We still need to convert between measurements in this day and age because, in the UK, we regularly use a mix of imperial and metric measurements such as pints, cm, miles, km, stones and grams. Also, the rest of the world use a range of measurements so we need to be able to convert between these.

Why Do We Need Conversion Graphs? Can you make two lists of measurements: Imperial and Metric Note It Imperial inches miles pounds ounces stones pints gallons Metric grams kilometres kilograms millilitres centimetres litres Note It Answers

Reading the Graphs Graph to Convert Stones and Kg 60 Kilograms 50 40 Reading from a conversion graph is simple if you look carefully. Make sure you have identified which axis is which. From the amount you are given, follow this to the line and then find where that line sits on the other axis. 30 Use the graph to answer these: 8 stones = ? 20 kg = ? 5 stones = ? 20 10 0 0 1 2 3 4 5 6 7 8 9 10 Stones Try It Answers

10 Drawing the Graphs Graph to Convert Litres and Gallons 9 8 To draw your own graph, simply follow these instructions: Gallons 7 6 1. Draw two axes and label them with the two units you need to use. Don’t forget the title for your graph. 2. Number each axis making sure that all numbers are on thick blue lines (not in the gaps) and the spaces between numbers are consistent along each axis. 5 4 3 2 1 0 0 10 20 30 Litres 40 50

10 Drawing the Graphs Graph to Convert Litres and Gallons 9 8 Gallons 7 3. Plot 3 points that you know on the graph. 4. Join the 3 points with a ruler. They should form one straight line. 6 5 4 3 2 1 0 0 10 20 30 Litres 40 50 Practice It

Conversion Graphs 1 Miles and Kilometres Use the blank graph below or draw your own on graph paper to create a conversion graph to convert distances between miles and kilometres. 1. First of all, plot the following points on the graph: a. 8 km = 5 miles b. 20 miles = 32 km c. 16 km = 10 miles d. 0 miles = 0 km 2. Now, using a ruler, join up the points with a straight line. 3. Now use the line on your graph to finish the following conversions: a. 15 miles = b. 30 km = c. 35 miles = d. 49 km =

Conversion Graphs 1 Miles and Kilometres 70 60 Kilometres 50 40 30 20 10 0 0 10 20 30 40 Miles 50 60 70

Conversion Graphs 2 Centimetres and Inches Use the blank graph below or draw your own on graph paper to create a conversion graph to convert lengths between centimetres and inches. 1. First of all, plot the following points on the graph: a. 4 inches = 10 cm b. 51 cm = 20 inches c. 10 inches = 25 cm d. 0 cm = 0 inches 2. Now, using a ruler, join up the points with a straight line. 3. Now use the line on your graph to finish the following conversions: a. 16 inches = b. 60 cm = c. 30 inches = d. 100 cm =

Conversion Graphs 2 Centimetres and Inches 80 70 60 Inches 50 40 30 20 10 0 0 10 20 30 40 50 60 Centimetres 70 80 90 100

Conversion Graphs 3 Celsius and Fahrenheit Use the blank graph below or draw your own on graph paper to create a conversion graph to convert temperatures between Celsius and Fahrenheit. 1. First of all, plot the following points on the graph: a. 10°C = 50°F b. 32°F = 0°C c. 5°C = 41°F d. 68°F = 20°C 2. Now, using a ruler, join up the points with a straight line. 3. Now use the line on your graph to finish the following conversions: a. 60°F = b. 25°C = c. 100°F = d. 32°C =

Conversion Graphs 3 Celsius and Fahrenheit 80 70 60 Celsius 50 40 30 20 10 0 0 10 20 30 40 50 60 Fahrenheit 70 80 90 100

Answers to be within 3 units to be accurate. Miles and Kilometres 3. a. 15 miles = 24 km b. 30 km = 19 miles c. 35 miles = 56 km d. 49 km = 31 miles Centimetres and Inches 3. a. 16 inches = 41 cm b. 60 cm = 24 inches c. 30 inches = 76 cm d. 100 cm = 39 inches Celsius and Fahrenheit 3. a. 60°F = 16°C b. 25°C = 77°F c. 100°F = 38°C d. 32°C = 90°F